Roundup, MT ZIP codes
Roundup, Montana has 2 ZIP codes, including 1 PO Box ZIP. They are in Musselshell County.
- Population in these ZIPs
- 4,690
- Avg. median income
- $59,600population-weighted
- Typical home value
- $229,200population-weighted
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Roundup, MT ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 59072 | Musselshell County | 4,690 | $59,594 | $229,200 |
| 59073 PO Box | Musselshell County | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Roundup
- Lavina 21 mi
- Musselshell 23 mi
- Shepherd 31 mi
- Broadview 31 mi
- Acton 32 mi
- Worden 34 mi
- Forest Grove 34 mi
- Ryegate 37 mi
- Grass Range 38 mi
- Custer 38 mi
- Melstone 39 mi
- Ballantine 45 mi
Frequently asked questions
What county is Roundup, Montana in?
Roundup ZIP codes are in Musselshell County.
Which Roundup ZIP codes are PO Boxes?
59073 is a PO Box or single-organization ZIP code; it has no residential delivery area.